Undrdose of antivaric drugs, including scler agents, init

This code signifies a patient experiencing adverse effects or complications due to receiving an insufficient amount of medication intended to treat varicose veins or as a sclerosing agent. This underdosing could lead to the original condition not improving or worsening, or the patient developing new symptoms related to the inadequate treatment.

Use this code when documentation clearly indicates that a patient's current condition or symptoms are a direct result of receiving less than the prescribed or therapeutically effective dose of an antivaricose drug or sclerosing agent. This applies to the initial period of care for the underdosing event.

• Ensure the medical record explicitly states "underdosing" and links it to an antivaricose or sclerosing agent.
• Always sequence this code after the code(s) for the specific manifestation(s) or adverse effects caused by the underdosing.
• Verify that the encounter is the "initial encounter" for the underdosing event; subsequent encounters would use a different seventh character.